Supplementary Figure 1: OGT modifies specific sites on peptide substrates.
From: The active site of O-GlcNAc transferase imposes constraints on substrate sequence
Peptides emerging as hits from the screen, ranked by OGT activity. The O-GlcNAc serine or threonine residue in each peptide is highlighted in red. Green shading marks peptides in which the site identified from the screen matches previous reports. Peptides derived from proteins that have been published in the literature as O-GlcNAcylated proteins (with unknown modification sites) are highlighted in blue.
